The last time she'd ended up in a beam war like this, she'd overpowered the opponent by engaging her Blaster limits. But Nanoha had a sneaking suspicion that Fate would probably kill her if she did something like that in a practice spar (...again). Hell, she'd probably get chewed out just for using her Excelion Buster.

So she just gritted her teeth and tried to overpower the boy with as much magical energy as she could spare.